In the present times it is the uncompassionate that rule the world. One of the surest ways to cure people of their lack of compassion is to show to them that the power or force they usually display is just illusory. That they are trying to be proud of something which is not of their doing. This is because the force of selfishness that the uncompassionate people project comes forth because emotions are controlling them. The person is not under control and all the force or power that he projects is not coming from his own volition.
Think what people would think of one who is under the control of emotions. Would they naturally more regard a person who is very prone to emotions, patent or repressed, or one who is self composed all the time? The answer unequivocally would be, one would naturally be impressed by and respect the latter a lot more. If displaying negative emotions in general heart of hearts, is not considered desirable, then why are people trying to project their emotions? Simply because they are not able to control them. It is exactly such people who are under the grip of emotions who are not able to show or sustain compassion. Secondly such people get away in practice by the display of emotions and no one thinks that they are not doing it out of volition.
But the real problem is one who is compassionate and well intentioned is also under the control of his emotions and is forced to fall in line with the selfish and not powerful enough to influence the selfish juggernaut , though from the point of view of ability to control emotions , he is at a higher rung compared to the selfish people.
A remedy for this is to systematically teach people that one who is under the control of emotions is actually a slave. Right teaching would help making people realize the truth that coming out of emotions is very desirable even if difficult. The greatest freedom would be to come out of that hold and be able to think independently.
My view is that a person who is able the win this battle by sincere and constant efforts could not win a greater battle. I would say it is equivalent to conquering the whole of universe. One can feel so much worthy about oneself if one can accomplish that. Though that indeed is the design of nature, it may be part of the design that at some point people put in sincere conscious efforts towards overcoming emotions.